Yeah, that was one of the issues that was a big source of friction in my relationship with the ex. She was incredibly mediocre in the sack and at giving head. I initially tried coaching her a bit, and she was moderately receptive and took it well, but it made no difference. Instead she only wanted to do positions where I was doing the banging, which got pretty boring very quickly. That resulted in me losing interest having sex, so we were only having it once or twice a week fairly early in the relationship. It didn't help that I often had late nights playing hockey etc and didn't have the energy to go at it, especially if I knew I was doing to have to do all the work. Plus, she always, always, ALWAYS insisted that we do massages first, which is nice sometimes, but sometimes you just want to have a quick bang without it being a 90 minute routine. We continued to talk about it, but not nearly as much or as openly as we should have, and I think on her end she felt a lot of resentment at me not being as interested in her sexually as she was in me.